1902261 has 16 divisors (see below), whose sum is σ = 2787840. Its totient is φ = 1148400.

The previous prime is 1902239. The next prime is 1902269. The reversal of 1902261 is 1622091.

It is not a de Polignac number, because 1902261 - 2⁹ = 1901749 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (174240).

2^1902261 is an apocalyptic number.

It is an amenable number.

1902261 is a deficient number, since it is larger than the sum of its proper divisors (885579).

1902261 is a wasteful number, since it uses less digits than its factorization.

1902261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1902261 is about 1379.2247822599. The cubic root of 1902261 is about 123.9053431269.

The spelling of 1902261 in words is "one million, nine hundred two thousand, two hundred sixty-one".