1923217401 has 32 divisors (see below), whose sum is σ = 3041026048. Its totient is φ = 1057950720.

The previous prime is 1923217397. The next prime is 1923217403. The reversal of 1923217401 is 1047123291.

It is not a de Polignac number, because 1923217401 - 2² = 1923217397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1923217403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117990 + ... + 133296.

It is an arithmetic number, because the mean of its divisors is an integer number (95032064).

Almost surely, 2^1923217401 is an apocalyptic number.

It is an amenable number.

1923217401 is a deficient number, since it is larger than the sum of its proper divisors (1117808647).

1923217401 is a wasteful number, since it uses less digits than its factorization.

1923217401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15541.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1923217401 is about 43854.5026308588. The cubic root of 1923217401 is about 1243.5868658507.

The spelling of 1923217401 in words is "one billion, nine hundred twenty-three million, two hundred seventeen thousand, four hundred one".