20737494 has 24 divisors (see below), whose sum is σ = 46481760. Its totient is φ = 6673968.

The previous prime is 20737487. The next prime is 20737517. The reversal of 20737494 is 49473702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19342 + ... + 20385.

It is an arithmetic number, because the mean of its divisors is an integer number (1936740).

Almost surely, 2^20737494 is an apocalyptic number.

20737494 is an abundant number, since it is smaller than the sum of its proper divisors (25744266).

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

20737494 is a wasteful number, since it uses less digits than its factorization.

20737494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39764 (or 39761 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 20737494 is about 4553.8438708414. The cubic root of 20737494 is about 274.7380160601.

The spelling of 20737494 in words is "twenty million, seven hundred thirty-seven thousand, four hundred ninety-four".