140390217394 has 32 divisors (see below), whose sum is σ = 260247790080. Its totient is φ = 55423131648.

The previous prime is 140390217337. The next prime is 140390217463. The reversal of 140390217394 is 493712093041.

It is a self number, because there is not a number n which added to its sum of digits gives 140390217394.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6264079 + ... + 6286450.

It is an arithmetic number, because the mean of its divisors is an integer number (8132743440).

Almost surely, 2^140390217394 is an apocalyptic number.

140390217394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140390217394 is a deficient number, since it is larger than the sum of its proper divisors (119857572686).

140390217394 is a wasteful number, since it uses less digits than its factorization.

140390217394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550602.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 140390217394 in words is "one hundred forty billion, three hundred ninety million, two hundred seventeen thousand, three hundred ninety-four".