140021474 has 8 divisors (see below), whose sum is σ = 213475548. Its totient is φ = 68862960.

The previous prime is 140021467. The next prime is 140021501. The reversal of 140021474 is 474120041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139405249 + 616225 = 11807^2 + 785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×140021474² = 39212026362265352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573737 + ... + 573980.

Almost surely, 2^140021474 is an apocalyptic number.

140021474 is a deficient number, since it is larger than the sum of its proper divisors (73454074).

140021474 is a wasteful number, since it uses less digits than its factorization.

140021474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147780.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 140021474 is about 11833.0669735280. The cubic root of 140021474 is about 519.2759573084.

The spelling of 140021474 in words is "one hundred forty million, twenty-one thousand, four hundred seventy-four".