3640506342 has 16 divisors (see below), whose sum is σ = 7942923072. Its totient is φ = 1103183720.

The previous prime is 3640506341. The next prime is 3640506379. The reversal of 3640506342 is 2436050463.

It is a super-2 number, since 2×3640506342² = 26506572852284441928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640506341) 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, 27579528 + ... + 27579659.

It is an arithmetic number, because the mean of its divisors is an integer number (496432692).

Almost surely, 2^3640506342 is an apocalyptic number.

3640506342 is an abundant number, since it is smaller than the sum of its proper divisors (4302416730).

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

3640506342 is a wasteful number, since it uses less digits than its factorization.

3640506342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55159203.

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 3640506342 is about 60336.6086385372. The cubic root of 3640506342 is about 1538.3456600782.

The spelling of 3640506342 in words is "three billion, six hundred forty million, five hundred six thousand, three hundred forty-two".