405157355 has 4 divisors (see below), whose sum is σ = 486188832. Its totient is φ = 324125880.

The previous prime is 405157331. The next prime is 405157381. The reversal of 405157355 is 553751504.

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

It is not a de Polignac number, because 405157355 - 2¹⁰ = 405156331 is a prime.

It is a Duffinian 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, 40515731 + ... + 40515740.

It is an arithmetic number, because the mean of its divisors is an integer number (121547208).

Almost surely, 2^405157355 is an apocalyptic number.

405157355 is a deficient number, since it is larger than the sum of its proper divisors (81031477).

405157355 is an equidigital number, since it uses as much as digits as its factorization.

405157355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81031476.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 405157355 is about 20128.5209342366. The cubic root of 405157355 is about 739.9594298430.

The spelling of 405157355 in words is "four hundred five million, one hundred fifty-seven thousand, three hundred fifty-five".