1642500442 has 16 divisors (see below), whose sum is σ = 2688995232. Its totient is φ = 746239120.

The previous prime is 1642500437. The next prime is 1642500443. The reversal of 1642500442 is 2440052461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642500442.

It is not an unprimeable number, because it can be changed into a prime (1642500443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33408 + ... + 66340.

It is an arithmetic number, because the mean of its divisors is an integer number (168062202).

Almost surely, 2^1642500442 is an apocalyptic number.

1642500442 is a deficient number, since it is larger than the sum of its proper divisors (1046494790).

1642500442 is a wasteful number, since it uses less digits than its factorization.

1642500442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35213.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1642500442 is about 40527.7737113698. The cubic root of 1642500442 is about 1179.8727340482.

It can be divided in two parts, 16425004 and 42, that added together give a triangular number (16425046 = T₅₇₃₁).

The spelling of 1642500442 in words is "one billion, six hundred forty-two million, five hundred thousand, four hundred forty-two".