1002562040 has 32 divisors (see below), whose sum is σ = 2259128880. Its totient is φ = 400426752.

The previous prime is 1002562039. The next prime is 1002562051. The reversal of 1002562040 is 402652001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8972 + ... + 45668.

Almost surely, 2^1002562040 is an apocalyptic number.

1002562040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002562040 is an abundant number, since it is smaller than the sum of its proper divisors (1256566840).

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

1002562040 is a wasteful number, since it uses less digits than its factorization.

1002562040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37391 (or 37387 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1002562040 is about 31663.2600974694. The cubic root of 1002562040 is about 1000.8532850309.

The spelling of 1002562040 in words is "one billion, two million, five hundred sixty-two thousand, forty".