1540074 has 32 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 483392.

The previous prime is 1540073. The next prime is 1540079. The reversal of 1540074 is 4700451.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540074.

It is not an unprimeable number, because it can be changed into a prime (1540073) 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, 9139 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2^1540074 is an apocalyptic number.

1540074 is an abundant number, since it is smaller than the sum of its proper divisors (1725846).

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

1540074 is a wasteful number, since it uses less digits than its factorization.

1540074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 1540074 is about 1240.9971796906. The cubic root of 1540074 is about 115.4818846797.

The spelling of 1540074 in words is "one million, five hundred forty thousand, seventy-four".