1552294840 has 64 divisors (see below), whose sum is σ = 3729369600. Its totient is φ = 580094592.

The previous prime is 1552294831. The next prime is 1552294853. The reversal of 1552294840 is 484922551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1552294793 and 1552294802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19941 + ... + 59179.

It is an arithmetic number, because the mean of its divisors is an integer number (58271400).

Almost surely, 2^1552294840 is an apocalyptic number.

1552294840 is a gapful number since it is divisible by the number (10) 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 1552294840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864684800).

1552294840 is an abundant number, since it is smaller than the sum of its proper divisors (2177074760).

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

1552294840 is a wasteful number, since it uses less digits than its factorization.

1552294840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39316 (or 39312 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1552294840 is about 39399.1730877692. The cubic root of 1552294840 is about 1157.8653866549.

The spelling of 1552294840 in words is "one billion, five hundred fifty-two million, two hundred ninety-four thousand, eight hundred forty".