621140414 has 8 divisors (see below), whose sum is σ = 932138280. Its totient is φ = 310427656.

The previous prime is 621140393. The next prime is 621140431. The reversal of 621140414 is 414041126.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 621140414.

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, 65744 + ... + 74595.

It is an arithmetic number, because the mean of its divisors is an integer number (116517285).

Almost surely, 2^621140414 is an apocalyptic number.

621140414 is a deficient number, since it is larger than the sum of its proper divisors (310997866).

621140414 is a wasteful number, since it uses less digits than its factorization.

621140414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142554.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 621140414 is about 24922.6887393796. The cubic root of 621140414 is about 853.2243916439.

The spelling of 621140414 in words is "six hundred twenty-one million, one hundred forty thousand, four hundred fourteen".