1261470 has 32 divisors (see below), whose sum is σ = 3460608. Its totient is φ = 288288.

The previous prime is 1261459. The next prime is 1261487. The reversal of 1261470 is 741621.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2794 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (108144).

2^1261470 is an apocalyptic number.

1261470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1261470 is an abundant number, since it is smaller than the sum of its proper divisors (2199138).

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

1261470 is a wasteful number, since it uses less digits than its factorization.

1261470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1261470 is about 1123.1518152058. The cubic root of 1261470 is about 108.0502167020.

It can be divided in two parts, 126 and 1470, that added together give a triangular number (1596 = T₅₆).

The spelling of 1261470 in words is "one million, two hundred sixty-one thousand, four hundred seventy".