1801429 has 16 divisors (see below), whose sum is σ = 2193408. Its totient is φ = 1446192.

The previous prime is 1801411. The next prime is 1801433. The reversal of 1801429 is 9241081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1801429 - 2¹¹ = 1799381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10704 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (137088).

2^1801429 is an apocalyptic number.

It is an amenable number.

1801429 is a deficient number, since it is larger than the sum of its proper divisors (391979).

1801429 is a wasteful number, since it uses less digits than its factorization.

1801429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1801429 is about 1342.1732377007. The cubic root of 1801429 is about 121.6762220139.

The spelling of 1801429 in words is "one million, eight hundred one thousand, four hundred twenty-nine".