400425351 has 16 divisors (see below), whose sum is σ = 540463104. Its totient is φ = 263683904.

The previous prime is 400425349. The next prime is 400425371. The reversal of 400425351 is 153524004.

It is a cyclic number.

It is not a de Polignac number, because 400425351 - 2¹ = 400425349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400425371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121315 + ... + 124571.

It is an arithmetic number, because the mean of its divisors is an integer number (33778944).

Almost surely, 2^400425351 is an apocalyptic number.

400425351 is a deficient number, since it is larger than the sum of its proper divisors (140037753).

400425351 is a wasteful number, since it uses less digits than its factorization.

400425351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 400425351 is about 20010.6309495728. The cubic root of 400425351 is about 737.0673749564.

Adding to 400425351 its reverse (153524004), we get a palindrome (553949355).

The spelling of 400425351 in words is "four hundred million, four hundred twenty-five thousand, three hundred fifty-one".