400722532007 has 4 divisors (see below), whose sum is σ = 457968608016. Its totient is φ = 343476456000.

The previous prime is 400722532003. The next prime is 400722532031. The reversal of 400722532007 is 700235227004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400722532007 - 2² = 400722532003 is a prime.

It is a super-2 number, since 2×400722532007² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400722532003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28623037994 + ... + 28623038007.

It is an arithmetic number, because the mean of its divisors is an integer number (114492152004).

Almost surely, 2^400722532007 is an apocalyptic number.

400722532007 is a deficient number, since it is larger than the sum of its proper divisors (57246076009).

400722532007 is an equidigital number, since it uses as much as digits as its factorization.

400722532007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57246076008.

The product of its (nonzero) digits is 23520, while the sum is 32.

The spelling of 400722532007 in words is "four hundred billion, seven hundred twenty-two million, five hundred thirty-two thousand, seven".