20029092040 has 32 divisors (see below), whose sum is σ = 46164618360. Its totient is φ = 7816230400.

The previous prime is 20029092029. The next prime is 20029092043. The reversal of 20029092040 is 4029092002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16922367396 + 3106724644 = 130086^2 + 55738^2 .

It is not an unprimeable number, because it can be changed into a prime (20029092043) 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, 6104791 + ... + 6108070.

Almost surely, 2^20029092040 is an apocalyptic number.

20029092040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20029092040 is an abundant number, since it is smaller than the sum of its proper divisors (26135526320).

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

20029092040 is a wasteful number, since it uses less digits than its factorization.

20029092040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212913 (or 12212909 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 20029092040 in words is "twenty billion, twenty-nine million, ninety-two thousand, forty".