400713770 has 8 divisors (see below), whose sum is σ = 721284804. Its totient is φ = 160285504.

The previous prime is 400713739. The next prime is 400713839. The reversal of 400713770 is 77317004.

It can be written as a sum of positive squares in 2 ways, for example, as 397324489 + 3389281 = 19933^2 + 1841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×400713770² = 321143050935225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20035679 + ... + 20035698.

Almost surely, 2^400713770 is an apocalyptic number.

400713770 is a deficient number, since it is larger than the sum of its proper divisors (320571034).

400713770 is a wasteful number, since it uses less digits than its factorization.

400713770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40071384.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 400713770 is about 20017.8362966630. The cubic root of 400713770 is about 737.2442978335.

The spelling of 400713770 in words is "four hundred million, seven hundred thirteen thousand, seven hundred seventy".