402225477 has 4 divisors (see below), whose sum is σ = 536300640. Its totient is φ = 268150316.

The previous prime is 402225431. The next prime is 402225503. The reversal of 402225477 is 774522204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402225477 - 2⁷ = 402225349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402225077) 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, 67037577 + ... + 67037582.

It is an arithmetic number, because the mean of its divisors is an integer number (134075160).

Almost surely, 2^402225477 is an apocalyptic number.

It is an amenable number.

402225477 is a deficient number, since it is larger than the sum of its proper divisors (134075163).

402225477 is a wasteful number, since it uses less digits than its factorization.

402225477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134075162.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 402225477 is about 20055.5597528466. The cubic root of 402225477 is about 738.1702279157.

The spelling of 402225477 in words is "four hundred two million, two hundred twenty-five thousand, four hundred seventy-seven".