1641402542 has 16 divisors (see below), whose sum is σ = 2659874112. Its totient is φ = 755176800.

The previous prime is 1641402517. The next prime is 1641402563. The reversal of 1641402542 is 2452041461.

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, 91334 + ... + 107817.

It is an arithmetic number, because the mean of its divisors is an integer number (166242132).

Almost surely, 2^1641402542 is an apocalyptic number.

1641402542 is a deficient number, since it is larger than the sum of its proper divisors (1018471570).

1641402542 is a wasteful number, since it uses less digits than its factorization.

1641402542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199483.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1641402542 is about 40514.2264149274. The cubic root of 1641402542 is about 1179.6097871870.

The spelling of 1641402542 in words is "one billion, six hundred forty-one million, four hundred two thousand, five hundred forty-two".