1642138014 has 32 divisors (see below), whose sum is σ = 3698426880. Its totient is φ = 481564800.

The previous prime is 1642138013. The next prime is 1642138019. The reversal of 1642138014 is 4108312461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642138013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399259 + ... + 403350.

It is an arithmetic number, because the mean of its divisors is an integer number (115575840).

Almost surely, 2^1642138014 is an apocalyptic number.

1642138014 is an abundant number, since it is smaller than the sum of its proper divisors (2056288866).

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

1642138014 is a wasteful number, since it uses less digits than its factorization.

1642138014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802656.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1642138014 is about 40523.3021112545. The cubic root of 1642138014 is about 1179.7859455639.

It can be divided in two parts, 1642 and 138014, that added together give a triangular number (139656 = T₅₂₈).

The spelling of 1642138014 in words is "one billion, six hundred forty-two million, one hundred thirty-eight thousand, fourteen".