10400403020 has 24 divisors (see below), whose sum is σ = 24960967584. Its totient is φ = 3565852416.

The previous prime is 10400402983. The next prime is 10400403031. The reversal of 10400403020 is 2030400401.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10400402986 and 10400403004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37144157 + ... + 37144436.

It is an arithmetic number, because the mean of its divisors is an integer number (1040040316).

Almost surely, 2^10400403020 is an apocalyptic number.

10400403020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400403020 is an abundant number, since it is smaller than the sum of its proper divisors (14560564564).

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

10400403020 is a wasteful number, since it uses less digits than its factorization.

10400403020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74288609 (or 74288607 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 10400403020 its reverse (2030400401), we get a palindrome (12430803421).

The spelling of 10400403020 in words is "ten billion, four hundred million, four hundred three thousand, twenty".