400700670740 has 24 divisors (see below), whose sum is σ = 841483609512. Its totient is φ = 160277944320.

The previous prime is 400700670737. The next prime is 400700670757. The reversal of 400700670740 is 47076007004.

It can be written as a sum of positive squares in 4 ways, for example, as 9042488464 + 391658182276 = 95092^2 + 625826^2 .

It is a super-2 number, since 2×400700670740² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400700670740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164220 + ... + 2342060.

It is an arithmetic number, because the mean of its divisors is an integer number (35061817063).

Almost surely, 2^400700670740 is an apocalyptic number.

It is an amenable number.

400700670740 is an abundant number, since it is smaller than the sum of its proper divisors (440782938772).

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

400700670740 is a wasteful number, since it uses less digits than its factorization.

400700670740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290507 (or 290505 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

Adding to 400700670740 its reverse (47076007004), we get a palindrome (447776677744).

The spelling of 400700670740 in words is "four hundred billion, seven hundred million, six hundred seventy thousand, seven hundred forty".