1642374 has 12 divisors (see below), whose sum is σ = 3558516. Its totient is φ = 547452.

The previous prime is 1642373. The next prime is 1642397. The reversal of 1642374 is 4732461.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45604 + ... + 45639.

It is an arithmetic number, because the mean of its divisors is an integer number (296543).

2^1642374 is an apocalyptic number.

1642374 is an abundant number, since it is smaller than the sum of its proper divisors (1916142).

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

1642374 is a wasteful number, since it uses less digits than its factorization.

1642374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91251 (or 91248 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1642374 is about 1281.5514035730. The cubic root of 1642374 is about 117.9842457182.

It can be divided in two parts, 1642 and 374, that added together give a triangular number (2016 = T₆₃).

The spelling of 1642374 in words is "one million, six hundred forty-two thousand, three hundred seventy-four".