3645019542 has 16 divisors (see below), whose sum is σ = 7295754240. Its totient is φ = 1214053992.

The previous prime is 3645019531. The next prime is 3645019549. The reversal of 3645019542 is 2459105463.

It is a self number, because there is not a number n which added to its sum of digits gives 3645019542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645019549) 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, 229818 + ... + 245165.

It is an arithmetic number, because the mean of its divisors is an integer number (455984640).

Almost surely, 2^3645019542 is an apocalyptic number.

3645019542 is an abundant number, since it is smaller than the sum of its proper divisors (3650734698).

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

3645019542 is a wasteful number, since it uses less digits than its factorization.

3645019542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476267.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 3645019542 is about 60373.9972339086. The cubic root of 3645019542 is about 1538.9811023210.

The spelling of 3645019542 in words is "three billion, six hundred forty-five million, nineteen thousand, five hundred forty-two".