642351414 has 16 divisors (see below), whose sum is σ = 1308943152. Its totient is φ = 210077088.

The previous prime is 642351379. The next prime is 642351439. The reversal of 642351414 is 414153246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009669 + ... + 1010304.

It is an arithmetic number, because the mean of its divisors is an integer number (81808947).

Almost surely, 2^642351414 is an apocalyptic number.

642351414 is an abundant number, since it is smaller than the sum of its proper divisors (666591738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642351414 is a wasteful number, since it uses less digits than its factorization.

642351414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020031.

The product of its digits is 11520, while the sum is 30.

The square root of 642351414 is about 25344.6525720910. The cubic root of 642351414 is about 862.8279960671.

The spelling of 642351414 in words is "six hundred forty-two million, three hundred fifty-one thousand, four hundred fourteen".