1902641 has 8 divisors (see below), whose sum is σ = 2157120. Its totient is φ = 1663632.

The previous prime is 1902619. The next prime is 1902643. The reversal of 1902641 is 1462091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1902641 - 2¹⁸ = 1640497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1902643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3605 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (269640).

2^1902641 is an apocalyptic number.

It is an amenable number.

1902641 is a deficient number, since it is larger than the sum of its proper divisors (254479).

1902641 is a wasteful number, since it uses less digits than its factorization.

1902641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1902641 is about 1379.3625339265. The cubic root of 1902641 is about 123.9135931156.

The spelling of 1902641 in words is "one million, nine hundred two thousand, six hundred forty-one".