402750901 has 8 divisors (see below), whose sum is σ = 461297600. Its totient is φ = 344456928.

The previous prime is 402750877. The next prime is 402750911. The reversal of 402750901 is 109057204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402750901 - 2¹⁵ = 402718133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402750901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402750911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59751 + ... + 66148.

It is an arithmetic number, because the mean of its divisors is an integer number (57662200).

Almost surely, 2^402750901 is an apocalyptic number.

It is an amenable number.

402750901 is a deficient number, since it is larger than the sum of its proper divisors (58546699).

402750901 is a wasteful number, since it uses less digits than its factorization.

402750901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126363.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 402750901 is about 20068.6546883442. The cubic root of 402750901 is about 738.4915100619.

It can be divided in two parts, 402750 and 901, that added together give a triangular number (403651 = T₈₉₈).

The spelling of 402750901 in words is "four hundred two million, seven hundred fifty thousand, nine hundred one".