402151415 has 4 divisors (see below), whose sum is σ = 482581704. Its totient is φ = 321721128.

The previous prime is 402151403. The next prime is 402151423. The reversal of 402151415 is 514151204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402151415 - 2¹⁰ = 402150391 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 40215137 + ... + 40215146.

It is an arithmetic number, because the mean of its divisors is an integer number (120645426).

Almost surely, 2^402151415 is an apocalyptic number.

402151415 is a deficient number, since it is larger than the sum of its proper divisors (80430289).

402151415 is an equidigital number, since it uses as much as digits as its factorization.

402151415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80430288.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 402151415 is about 20053.7132471769. The cubic root of 402151415 is about 738.1249185703.

The spelling of 402151415 in words is "four hundred two million, one hundred fifty-one thousand, four hundred fifteen".