1534412440 has 32 divisors (see below), whose sum is σ = 3766286160. Its totient is φ = 557968000.

The previous prime is 1534412377. The next prime is 1534412449. The reversal of 1534412440 is 442144351.

It is a junction number, because it is equal to n+sod(n) for n = 1534412399 and 1534412408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534412449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743211 + ... + 1744090.

Almost surely, 2^1534412440 is an apocalyptic number.

1534412440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1534412440 is an abundant number, since it is smaller than the sum of its proper divisors (2231873720).

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

1534412440 is a wasteful number, since it uses less digits than its factorization.

1534412440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487323 (or 3487319 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1534412440 is about 39171.5769404297. The cubic root of 1534412440 is about 1153.4020091939.

Adding to 1534412440 its reverse (442144351), we get a palindrome (1976556791).

The spelling of 1534412440 in words is "one billion, five hundred thirty-four million, four hundred twelve thousand, four hundred forty".