20342950 has 12 divisors (see below), whose sum is σ = 37837980. Its totient is φ = 8137160.

The previous prime is 20342941. The next prime is 20342957. The reversal of 20342950 is 5924302.

It is a happy number.

It is a super-2 number, since 2×20342950² = 827671229405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342957) 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, 203380 + ... + 203479.

It is an arithmetic number, because the mean of its divisors is an integer number (3153165).

Almost surely, 2^20342950 is an apocalyptic number.

20342950 is a deficient number, since it is larger than the sum of its proper divisors (17495030).

20342950 is a wasteful number, since it uses less digits than its factorization.

20342950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406871 (or 406866 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20342950 is about 4510.3159534560. The cubic root of 20342950 is about 272.9844928509.

It can be divided in two parts, 20 and 342950, that multiplied together give a cube (6859000 = 190³).

The spelling of 20342950 in words is "twenty million, three hundred forty-two thousand, nine hundred fifty".