1534402044 has 144 divisors (see below), whose sum is σ = 4552224768. Its totient is φ = 426691584.

The previous prime is 1534402007. The next prime is 1534402061. The reversal of 1534402044 is 4402044351.

It is a happy number.

1534402044 is a `hidden beast` number, since 15 + 3 + 440 + 204 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1534401999 and 1534402017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4180749 + ... + 4181115.

It is an arithmetic number, because the mean of its divisors is an integer number (31612672).

Almost surely, 2^1534402044 is an apocalyptic number.

1534402044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1534402044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2276112384).

1534402044 is an abundant number, since it is smaller than the sum of its proper divisors (3017822724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1534402044 is a wasteful number, since it uses less digits than its factorization.

1534402044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1534402044 is about 39171.4442419475. Note that the first 3 decimals coincide. The cubic root of 1534402044 is about 1153.3994043326.

Adding to 1534402044 its reverse (4402044351), we get a palindrome (5936446395).

The spelling of 1534402044 in words is "one billion, five hundred thirty-four million, four hundred two thousand, forty-four".