20348394 has 16 divisors (see below), whose sum is σ = 44396640. Its totient is φ = 6166160.

The previous prime is 20348359. The next prime is 20348429. The reversal of 20348394 is 49384302.

It is an interprime number because it is at equal distance from previous prime (20348359) and next prime (20348429).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154089 + ... + 154220.

It is an arithmetic number, because the mean of its divisors is an integer number (2774790).

Almost surely, 2^20348394 is an apocalyptic number.

20348394 is an abundant number, since it is smaller than the sum of its proper divisors (24048246).

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

20348394 is a wasteful number, since it uses less digits than its factorization.

20348394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308325.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20348394 is about 4510.9194184778. The cubic root of 20348394 is about 273.0088419093.

The spelling of 20348394 in words is "twenty million, three hundred forty-eight thousand, three hundred ninety-four".